Bălan, M. “Youth Labour Market in Romania’s Development Regions in the Framework of Sustainable Development and of a Knowledge-Based Economy”. Studia Universitatis Vasile Goldiș Arad, Seria Științe Economice, Vol. 27, no. 4, Dec. 2017, pp. 37-54, https://publicatii.uvvg.ro/index.php/studiaeconomia/article/view/185.